Multiple program decoding for digital audio broadcasting and other applications
CA 2295281 C · Owner: Sundberg, Carl-Erik Wilhelm · Inventors: Sinha, Deepen; Sundberg, Carl-Erik Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides methods and apparatus for decoding multiple program information e.g. audio, video or image information in a communication system. In an illustrative embodiment a multiple program decoder includes a deinterleaver for deinterleaving information corresponding to a set of frames using a specified deinterleaving length. A given one of the frames includes information from each of at least a subset of the programs and the frames are encoded using an outer code e.g. a CRC code, RS code, BCH code or other type of linear block code and an inner code, e.g. a convolutional code turbo code or trellis coded modulation. The multiple program decoder includes an inner code decoder for …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 12, 2000 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.